People walk past a poster for Turkey's President Tayyip Erdogan in Istanbul, Turkey, June 25, 2018. The poster reads: "Our people won, Turkey won, Thank you istanbul". REUTERS/Osman Orsal

BERLIN (Reuters) - German Chancellor Angela Merkel congratulated Turkish President Tayyip Erdogan on Monday on his electoral victory and stressed that Germany wanted Turkey to be pluralistic and boost democratic participation, her office said in a statement.

Merkel said Turkey had shown great responsibility in dealing with upheaval in the Middle East and the resulting migrant flows.

“All the more reason for us to want to be a partner of a stable and pluralistic Turkey in which democratic participation and the protection of the rule of law is strengthened,” she wrote to Erdogan.